Shop Windows to the Universe

History and People

Who made the first star map? When did people
know that the Earth was round? When were sunspots discovered? The
links to the right will lead you to biographies of scientists who lived
at different times through history. Discover the people who made science
history!

Research Highlights

Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled, beginning 4.568 billion years ago. Results...Read more